Improvement in water-elevators



UNITED STATES.

PATENT OFFICE.

YV. DAVIDSON JONES, OF lHAGAMANS MILLS,NEV YORK.

IM PROVEM ENT IN WATER-ELEVATO RS.

Specification forming part of Letters Patent- NO. 40,046, dated September 22, 1863.

To all whom it may concern:

Be it known that I, IV. DAVIDSON JONES, of Hagamans Mills, in the county of Montgomery and State of New York, have in vented a new and useful Improved Friction-Clutch:

and Crank Combined, and I do hereby declare that the following is a clear, full, and exact description of the construction and operation ofthe same, reference being had to the annexed drawings, making a part of this specification, in which- Figure lis an end view; Fig. 2, a longitudinal central elevation, as indicated by the line rv in Fig. 1. Fig. 3 is a transverse section.

Similar letters and gures indicate corresponding parts in each figure.

This invention consists in the arrangement and construction of the parts of a frictionclutch and crank combined in such form as to make the clutch and crank applicable for hoisting all weights where raised by handpower or otherwise, such as goods, stone, brick, coal, and well-buckets, to prevent injury from the reverse inotionof the shaft, and to insure a rapid back or down motion to the chain, rope, platform, or bucket without danger to the operator, as the speed of the unwinding shaft is under the control of the operator simply by manipulatin g the crank handle or lever, thus forming a brake.

To enable others skilled in the art to make and use my invention, I will endeavor to proceed to describe its construction and operation.

a is a shaft of suitable length, made of wrought or east iron, and provided with suitable bearings, 4 4, and having a friction-plate, b, made of wrought or cast iron, permanently iastened in its proper place on shaft o by shrinking, keying, or any of the known modes of fastening. rJhe face or outer side of friction-plate b is turned or itted so as to present a smooth surface.

'c is a ratehet-wheel and friction-plate combined, made of cast-iron or otherv material, having its inside turned or itted smooth, so as to meet and engage friction plate b, and having on its outer side and near the shaft a cam, l. Said ratchet-wheel, frictionplate, and cam, combined in one piece, is loose on shaft a, and next to friction-plate b.

On the outside of ratchet-wheel and friction-plate c and cam l combined there is provided a crank handle or lever, d, made of castiron or other material, which is loose on shafta. Said handle or lever d is provided with a corresponding cam, 2, reversed fromy cam 1 on friction-plate and ratchet-wheel c, so as to form the same as two reversed wedges reduced to a circle. Friction and ratchet wheel c and crank-handle or lever dare secured to their proper place endwise on shaft cr by nut e. Ratchet-wheel c is provided with a suitable pawl, g, which engages said ratchet c. Pawl g remains on said ratchet while the machine is in use.

The heels of cams l and 2, as shown in Fig.

3, are made at an angle of about forty-five degrees, and when the crank-handle is held backward one engages the other, thus forming a brake.

h is a frame, made of wood or other material, for the purpose of showing the positions of the bearings 4 4 and pawl g.

I do not confine myself to any particular described frame for the reception of my invention, as one maybe used to elevate water from wells and another for hoisting stone, &c.

rIhe spool t' i is made of wood, and is for the cord 3 to wind upon.

M is a weight, to which the cord 3 is attached, for the purpose of showin g the operation of the machine, substantially as described.

The operation of my invention is substantially as follows: 3 is a representation of a chain or rope. m is a representation of a load. or bucket of water. Forward motion being given to crank handle or lever r1, cam 2 is wedged or comes in contact with cam l on friction and ratchet wheel c, which causes the faces of both friction-plates b and c to engage, thereby causing shaft a and spoolz' to revolve and wind up the cord, rope, or chain. 3. The greater the load the more firmly the cams l 2 wedge the friction-plates b and c together. As fast as the crank dis turned, thus winding up the rope or chain 3, the pawl g engages ratchet c, thus holding it at any height. When the load m is elevated to the desired height and discharged, the crank handle or lever d is turned a short distance backward, while the pawl g holds ratchetwheel and frictionvplate c stationary, thereby unwedging or releasing cams l and 2, which releases friction-plates b and c, thus allowing shaft a to revolve freely backward by and with the weight of the chain, rope, platform, or bucket for another load. The speed of the descending chain or rope and platform or bucket is controlled and governed by holding backward the crank handle or lever d, which engages the heels of cams 1 and 2, as shown in Fig. 3, thereby slightly pressing plates b and c together, thus forming a brake of the said friction-clutch by reducing` the power of the heels of the cams l and 2, so as to control the speed of the unwinding shaft, which in ordinary cases is at an angle of about fortyive degrees, as shown in Fig. 3.

I am aware that various devices and apparatus have been invented, patented, and in use or like and similar purposes. All such I disclaim 5 nor do I claim separately the employing of friction plates for transmitting power i from one part of a machine to another, as that is an old device. Neither do I claim the attachment of a loose crank-handle or the employing of a pawl and ratchet, for all such are old and unpatentable; but

What I do claim as my invention, and desire to secure by Letters Patent, is-

The peculiar arrangement of the several parts of the described friction -clutch and crank combined, in combination with pawl g, shaft a, and crank handle or lever d, constructed and operating substantially as and for the purposes shown and described.

W. DAVIDSON JONES.

Witnesses:

JOHN W. THATCHER, DAVID W. TERWILLEGER. 

